Pump equalizer



Feb. 21, 1933.

Filed March 50, 1952 G. F. BRAKHAGE 1,898,238

PUMP EQUALI ZER 2 Sheets-Sheet l l; By

Feb. 21,-1933. G. F. BRAKHAGE PUMP EQUALI ZER Filed March 5o, 1952 2 sheetssheet 2 Inventor fpafyefi'a/fye V- /Illomey Patented Feb. 21, 1933 UNITED STATES GEORGE F. BRAXHAGE, OF WATERTOWN, SOUTH DAKOTA PUMP EaUALIz'iml Application med Maren a0, 1032. serial No. 602,050.

This invention relates to a mechanical equalizer device for use on deep well pumps of either power or hand actuated types, the

general object of the invention being to provide adjustable means which will enable the spring of the device to bala-nce perfectly the weight of the pump load of wells of varying depths and for causing the spring to automatically lift as much of the water along with the dead load of the rod as is desirable and to so construct and arrange the parts as to secure a smooth even action, requiring a minimum of pumping effort.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims.

In describing the invention in detail, reference will be had to the accompanying drawings wherein like or corresponding parts through the several views, and in which Figure 1 is a front view of a pump showing the invention in use thereon.

Fig. 2 is a top pla-n view of the device.

Fig. 3 is a section on line 3-3 of Fig. 1.

Fig. 4 is a section on line 4-4 of Fig. 1.

Fig. 5 is a side view of the outer end of the upper member of the device with one of the side pla-tes removed.

Fig. 6 is a-view showing the means for supplying lubricant to the ball bearings.

Fig. 7 is a view of one of the side plates, of the ball bearing assembly.

Fig. 8 is a view of the other side plate.

In these drawings, the letter A indicates the pump and the letter B indicates the pump rod to which the handle C is connected. It 40 will of course be understood that the device can be used on a power operated pump.

In carrying out my invention, I provide a bar 1 one end of which is forked as shown at 2 to form a stationary jaw for engaging a 45 part of the pump and to which the movable jaw 3 is fastened by the bolts 4 so that the bar is clamped to the pump as shown in Figs. 1 and 4. The other end of the bar is twisted so that this end lies in a horizontal plane and d has an opening therein through which a threaded rod 5 passes. A lnut 6 is threaded on the rod andf engages the outer end of the bar 1 to prevent upward movement of the rod.

A tubular post 7 has its lower end forked as shown at 8 to receive a part of the bar 1 55' and a bolt 9 passesthrough the prongs of the fork and through a hole inthe bar 1. A threaded bar 10 has its lower end entering the,v tubular postand a nut 11 on the bar 10 c l rests on the top of the post, as clearly shown 69" in Fig. -3 so that the length of the 'member composed of the post and bar 10 can be adjusted by adjusting the nut 11.

' The Lipper end of the bar 10v is forked as shown at A12, to receive aportion of the large 65" section 13 of the walking beam D, the other section of which being composed of the two smaller bars 14 fastened to the" part 13 by the bolts 15, and these two bars 14 extend one on each side of the pump rod B and are bolted 7" thereto as shown at 16. 'Y

A bolt 17 passes through the prongs of the fork 12 and through the section 13 of the walking beam and a clevis 18 is connected to the section 13 of the walking beam by a bolt 19 and a spring 20 has one end connected to this clevis and its other end passing through an eye 21 formed'on the upper end of the rod 5.

Each of the bolts 17 and 19 passes through an anti-friction assembly shown generally at carried by the section 13 of the walking beam and sheets 23 of felt or the like Vare placed, one on each side of the section 13 and are covered by the two side plates 24 and 25 and lubricant is supplied tothe bearings through means of a'cup 26 carried by the plate 24 and passing through a notch 27 in the plate 24 and this -plate 24 carries the guides 28 for guiding the lubricant tothe bearings and one of the pads 23 is formed in the opening 23 for receiving the guides. The plates 24 and 25 form a cage forthe ball bearings.

A bolt 29 passes through the member 13 and the two pads and the two plates 24 and 25. Thus it will be seen that I have provided simplemeans forcounter balancing the weight of thewater land the pump rod so that the pumping veffort is reducedfto a minimum and through the various adjustments shown the parts can be adjusted so the spring will balance perfectly the weight of the pump loads for varying loads of different wells and further adjustments may be made to automatically lift as much of the water, along with the 5 dead load of the steel rod, as is desirable.

Of course, a lighter or heavier spring can be used as desired or to suit the conditions under which invention is used.

It is thought from the foregoing description that the advantages and novel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction and in the combination and arrangement of the several provided that such changes fall within the scope of the appended claims. 1

Having thus described my invention, what I claim as new is 1. In combination with a pump and its rod,

20, a horizontally arranged bar having one end connected to the pump, a post pivoted to the bar adjacent its other end, said post being of tubular form, a threaded bar passed into the top of the post, a nut on the threaded bar 2K5J adapted to engage the top of the post, a walkingv beam pivotally connected intermediate its ends to the top of the bar, means for connecting one end of the walking beam to the pump rod, a clevis pivoted to the other end of 39 .the walking beam beyond the threaded bar, a spring connected to the clevis, a threaded bar having one end connected to the other end of the spring and said bar passing through a hole in the supporting bar, and a nut threaded on the bar connected with the spring and engaging the supporting bar for providing adjustment for the spring.

2. In combination with a pump and its rod, a supporting bar having one endy connected to 49a the pump and its other end having an opening therein, a tubular post pivoted to the supporting bar adjacent said other end, a threaded bar passed into the post, a nut on said threaded bar resting on the top of the post,

'. the upper end of said threaded bar being forked, a walking beam passing through the fork, a bolt passing through the prongs of the fork and through the walking beam to pivot the beam to the threaded bar, means 59- for connecting the walking beam to the pump rod, a clevis, a bolt passing through the same and through the walking beam, a spring having one end connected to the clevis, a threaded bar having an eye at its upper end for receiving the lower end of the spring, said bar passing through the opening in the supporting bar, and a nut on the bar engaging the under part of the supporting bar for adjustment of the spring, anti-friction means for 5# the bolts which connect the clevis and the forked end of the threaded bar to the Walking beam, and means for supplying lubricant to said anti-friction means.

In testimony whereof I affix my signature.

GEORGE F. BRAKHAGE. 

